Tight constraints on Einstein-dilation-Gauss-Bonnet gravity from GW190412 and GW190814
Gravitational-wave (GW) data can be used to test general relativity in the highly nonlinear and strong field regime. Modified gravity theories such as Einstein-dilation-Gauss-Bonnet and dynamical Chern-Simons can be tested with the additional GW signals detected in the first half of the third observ...
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Veröffentlicht in: | Physical review. D 2021-07, Vol.104 (2), p.1, Article 024015 |
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Sprache: | eng |
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Zusammenfassung: | Gravitational-wave (GW) data can be used to test general relativity in the highly nonlinear and strong field regime. Modified gravity theories such as Einstein-dilation-Gauss-Bonnet and dynamical Chern-Simons can be tested with the additional GW signals detected in the first half of the third observing run of Advanced LIGO/Virgo. Specifically, we analyze gravitational-wave data of GW190412 and GW190814 to place constraints on the parameters of these two theories. Our results indicate that dynamical Chern-Simons gravity remains unconstrained. For Einstein-dilation-Gauss-Bonnet gravity, we find √ αEdGB≲ 0.40 km when considering GW190814 data, assuming it is a black hole binary. Such a constraint are improved by a factor of approximately 10 in comparison to that set by the first Gravitational-Wave Transient Catalog events. |
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ISSN: | 2470-0010 2470-0029 |
DOI: | 10.1103/PhysRevD.104.024015 |